package com.springmvc;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

public class HelloWorldInterceptor implements HandlerInterceptor  {
	@Override
	public boolean preHandle(HttpServletRequest request,HttpServletResponse response, Object handler) throws Exception {
		
		System.out.println("Pre-handle");
		//return false 拦截了执行过程 return true继续继续执行
		return true;
	}
	
	@Override
	public void postHandle(HttpServletRequest request,HttpServletResponse response, Object handler,
			ModelAndView modelAndView) throws Exception {
		System.out.println("Post-handle");
	}
	
	@Override
	public void afterCompletion(HttpServletRequest request,	HttpServletResponse response, Object handler, Exception ex)
			throws Exception {
		System.out.println("After completion handle");
	}
}
